Is this really a new theremin circuit?

Hello everyone

for those interested in DIY theremin circuits and electronics, I wanna ask you about this new one:

http://www.nuevaelectronica.com/Images/EsquemaLX1665.GIF

What do you think of it? Is it a truly new design?
Do you think it will be a good theremin, garbage or just in the middle?

Thanks guys!

Looks pretty suspicious... most likely a bomb. I'm calling the police.

For those who are always seeking for something to study. I stumbled upon this neat collection:
https://www.robertobizzarri.net/NE/
And No.229 features the above mentioned theremin.
Also a theremin in No. 247. Piracy??

For those who are always seeking for something to study. I stumbled upon this neat collection:https://www.robertobizzarri.net/NE/And No.229 features the above mentioned theremin.Also a theremin in No. 247. Piracy??

Gracias.